Automatic stop for double-pile-fabric looms



July 12, 1927. 1,635,396

C. A. BONDZIULIS AUTOMATIC STOP FOR DOUBLE PILB FABRIC LOOMS Filed March 25. 1926 2 Sheets-Sheet l My 1927' c. A. BONDZIULIS AUTOMATIC STOP FOR DQUBLE PILE FAB RI C LOOMS Filed March 25. 1926 2 Sheets-Sheet 3 Patented July 12, 1927. a 2 V fcHARnEs A. BOINDZIULISQ F; WATEBEUERii; QONNEGTIOU'IQ J" nrrroiu T'Icf-s'ror a sessment-arena Looms. a

Appncatnm fiiea'fiv'iarch 25,1926. Serial ivoj'ea iaeq .1 Fig. 1 is a schematic view,mainly'ii'r front elevation, 'of my improveda-utomatic stop 1fordouble-pile-fabric looms, the parts being such as velvetfpl'ush or similarfmaterial 2 andsybymeans of a cord or cable 26 'passing over the idler-pulley, ,14 of the "bar-1'3 as well as suitably located pulleys2'7 28, 29 and 30 and 'aroundh'an oscillating driving drum"31-bym-eans of which the cord shown in the positions due-them under or- 5 dinary operating conditions. Fig; 2 is an enlarged broken sectional view on the line 2-2 of Fig. 1.

Fig. 3is a view corresponding to 2 but-showing the parts in positions due them when the pile-cutting knife-cord becomes slack for any reason. Fig. 4 is a broken plan view of the shelf or ledge with the control-lever in section.

This invention relates to an automatic stop for double-pile-fabric looms which are characterized by having a pile-cutting knife for cutting the double-pile fabric into two single-pile fabrics. V The object of this invention is to provide a simple and reliable stop mechanism for such looms which will function to automatically stop the loom and thus prevent damage to the fabric being woven, should the propelling cord .of'the pile-cutting knife be roken or displaced for any reason.

With this object in view, my invention consists in an automatic stop for doublepile-fabric looms having certain details of construction and combinations of parts as 3 will be hereinafter described and particularly recited in the claims. I

In carrying out my invention as herein shown a loom-control box 5 contains appropriate mechanism such as a clutch or electric switch for stopping and starting the loom. This mechanism, whatever its character, isoperated by a control-lever6 extend ing upward through a clearance-slot 7 in a shelf or ledge 8 forming a part of the loomframe. The slot 7 is formed with a laterally-ofisetting notch providing a shoulder '9 for holding the control-lever 6 in its on position against the tension of a spring 10 which tends to move it into its off position which is indicated by broken lines in Fig. 1. Below the shelf Sand pivoted at 11-to a bracket 12 secured to its underface is a counterbalanced bar 13 carrying an idler-pulley 14 on an extension 15 at its outer end and counterweights 16 at its opposite or inner end. The bar 13 is engaged by a guide 7 bracket 17 depending from the underface of the shelf 8 and mounts a casing 18 carrying a trip-plunger 19 normally held in its outwardly-extended position by a helical spring 20 encircling its reduced shank portion 21.

i A pile cutting knife 22 is reciprocated as required to out a double-pile fabric 23 into two separate singIeTpile fabrics 24c 25,

26 and hence the knife 22 is moved firstin one direction and then in theother.

'Under ordinary operating conditions the cord 26 by downward pull on the pulley 14 1 will maintain the bar 13 in the position in which it is shown by full lines inFigs. 1

and 2 against the counter-urge of the weight w 16 whereby the trip-plunger 19, carried by it,.

is held below the path of the reciprocating reed-beam 32 having reeds 33 and acting in the'ordinary manner to beat up the filling thread of the fabric 23 as it is being woven.

Having fully described one embodiment of my invention, I shall now proceed to describe the manner of its operation.

In the event that the knife-cord 26 should be engaged thereby with the effect of moving the control-lever 6 out of engagement with the shoulder 9 of the slot 7 thus releasing it to the action of its spring 10 by which it is swung into its off position as shown by broken lines in Fig. 1 and the loom thus automatically brought to a stop before any appreciable damage to the fabric can occur. a

.I claim:

nation with the power-control mechanism, pile-cutting knife-cord and reed-beam thereof, of a pivotal'bar adapted to oscillate in a plane substantially parallel with the said r-eedbeam, a knife-cord pulley carried by the said bar, a bodily-movable spring-extended trip-plunger also carried by the said pivotal 1. In a double-pile fabric-loom, the combibar and normally held out of the path of the said reed-beam by thetension of the said knife-cord, means yieldingly tending to move the said trip-plunger bodily into the path of the said reed-beam, means for releasably holding the control-mechanism in its on position, and yielding means normally urging the power-control mechanism into its off position; whereby the trip-plunger is bodily moved into the path of the said reedbeam for'engagementthereby to effect the stoppage of the loom when the knife-cord becomes slack.

2. Inca double-pile fabric-loom, the combination with the reed-beam and the operatinglever of the power control mechanism there- 1016; of a bar pivoted between its ends and adapted to oscillate in a plane substantially parallel with the said reed-beam; a knifecor'd pulley and a bodily-movable springextended trip-plunger mounted upon one 7 end of the said bar; a counterweight carried by the opposite end of the said bar; a pilecutting knife-cord passing over the said pulley, so as to normally overcome the counterweight and hold the said trip-plunger out of the path of the said reed-beam; means for normally urging the said operating-lever .moved bodily into the path of the reed-beam for engagement thereby toeffect the release of the said operating-lever and the stoppage of the loom.

In testimony whereof, I have signed this specification.

CHARLES A. BONDZIULIS. 

